Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

For the last 5 month's my upper hose of radiator collaspse twice! so this time I decided to change it (which I did by buying a new one 4 days ago) also to mention I've changed my thermostat, water pump, heat sensor and other down hose's and flashed the radiator back in Jan 2012

As for the upper hose I'm having problem to put it back in, previously it was like hanged not climped properly even the climp is available, its not going in up to those two threads even I'm using force

theres really no secret to it, just have to use force and make sure it's lined up properly..it's been a while since i worked on an e38, but i didn't think the metal clip would go in if you didn't seat the hose all the way

I came across this problem on the bottom radiator hose on an E46 and I could not get it to push back on so I got a new bottom hose and still it would not push back on so I swapped the inner hose sealing ring from the new to the old hose and it went on ? and the owner was happy with that, But it does not fully answer the question, I did find out that two years previously he had a non genuine radiator fitted and maybe then the bottom hose wasn't pushed right home and it then popped off. Otherwise maybe you can carefully use some emery paper and rub down the raditor hose stub as it may have swelled of even try using some washing up liquid on the stub, Peter.

I want to thank each and everyone of you for the great advice's, Alhumdallah the problem solved ^^, it seems I didnt push or apply enough force thats why it didnt gone in correctly, now its ok BUT it showing check coolant level and too much bubble steam coming from the bleeder after bleeding it while pressure is there, I think I need to change the radiator cauz thats the last think I should do